I am normally the guy in our group who knows stuff but i'll never argue a corner i don't know anything about, i'm just a bit OCD about some things and there's too much info in my head, most of my friends have learned to love it
Same here. But I have friends who really DON'T know something about a subject, yet will attempt to argue with me about it. One time I played along for a short time and then when it got so ridiculously stupid, I pointed it out and laughed, my friend gave up after that, lol.
I am a Ford fanboy, and he knows it. So he would randomly just say, "Mustang sucks ass, Camaro is much better." So I said, "why do you think that, it weighs more, and has no visibility, granted it does have a little more power."
His response was, it's bigger, thicker metal means it's safer...
I just told him he would have made a great American auto engineer in the early 70s. lmfao
Basically, don't egg those people on by arguing their point, just make them explain why they believe what they believe.